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California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
S615676 Rowland and Catherine Twisselman Privately-Individual 7390 Cattle Drive Santa Margarita, CA 93453 510-260-8346 eric.potts@sunpowercorp.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S814733 Twisselman Mine San Luis Obispo 3 Facility Discharger 01/25/2012 None
S811979 Castaic Lake Water Agency Solar Array Project Los Angeles 4 Facility Discharger 08/23/2011 None
Total Related Places: 2
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Rowland Twisselman Contact Owner Contact N/A N/A N/A
N/A Frederic Potts Contact Owner Contact N/A N/A N/A
Total Related Parties: 2
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
S423652 Industrial 3 3 40I023482 Active INDSTW 2014-0057-DWQ 01/25/2012 None Discharger 01/25/2012 None None
Total Regulatory Measures: 1
  
  
  
  
Expand/Contract Violations
Violations within the past five years
Violation ID Occurrence Date Violation Type Violation Description(-) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
S873710 07/16/2020 SW - Late Report Failure to submit 2019-2020 annual report. Violation N Report Twisselman Mine S423652 2014-0057-DWQ Y
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 1
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
S437968 2nd Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 09/25/2020 Historical
S437267 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 08/17/2020 Historical
S435032 2nd Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 11/01/2019 Historical
S434193 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 09/27/2019 Historical
S430552 2nd Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 09/14/2018 Historical
S430235 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 08/17/2018 Historical
S427188 2nd Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 09/21/2017 Historical
S426852 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 08/23/2017 Historical
S424140 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 08/12/2016 Historical
S420165 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 09/16/2015 Historical
S413098 1st Annual Report Notice of Non-Compliance None 3 40I023482 INDSTW 08/09/2013 Historical
Total Enforcement Actions: 11
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 04/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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